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EP-4343740-B1 - DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE

EP4343740B1EP 4343740 B1EP4343740 B1EP 4343740B1EP-4343740-B1

Inventors

  • OH, Pilyong
  • Lee, Kwangjae
  • KIM, Seungjae

Dates

Publication Date
20260506
Application Date
20220830

Claims (12)

  1. A display apparatus (1) comprising: a plurality of display modules (30); a frame (100) provided to support the plurality of display modules (30), the plurality of display modules (30) being arranged in an M*N matrix on the frame (100), and a bracket detachably coupled to the frame (100), wherein the frame (100) comprises a frame panel (110) comprising a first side (110a) and a second side (110b) opposite to the first side (110a), and wherein the frame panel (110) comprises: an insert portion (111) passing through the frame panel (110) and having a first opening (111a) formed on the first side (110a) and a second opening (111b) formed on the second side (110b), and a size of the first opening (111a) being greater than a size of the second opening (111b); and a stud (120) provided in the insert portion (111), wherein the plurality of display modules (30) are attached to the first side (110a) of the frame panel (110) and the bracket is coupled to the stud (120) through the second opening (111b) formed on the second side (110b) of the frame panel (110).
  2. The display apparatus (1) of claim 1, wherein the insert portion (111) is provided such that the first opening (111a) and the second opening (111b) form a step difference.
  3. The display apparatus (1) of claim 1, wherein the insert portion (111) is formed in a shape that tapers from the first side (110a) toward the second side (110b).
  4. The display apparatus (1) of claim 1, wherein the stud (120) comprises a coupling portion (120a) having an opening toward the second opening (111b), wherein the coupling portion (120a) comprises a screw thread (121) formed on an inner circumferential surface of the coupling portion (120a).
  5. The display apparatus (1) of claim 1, wherein the bracket comprises at least one of a mounting bracket (180), a chassis bracket (172), a reinforcing bracket (190), and a board bracket (160).
  6. The display apparatus (1) of claim 1, wherein the frame (100) further comprises a reinforcing member (130) attached to the first side (110a) of the frame panel (110) and provided to cover the first opening (111a).
  7. The display apparatus (1) of claim 6, wherein the plurality of display modules (30) are attached to the reinforcing member (130).
  8. The display apparatus (1) of claim 1, wherein the frame panel (110) further comprises: a first metal layer (116) forming the first side (110a) of the frame panel (110); a second metal layer (117) forming the second side (110b) of the frame panel (110); and a resin layer (118) arranged between the first metal layer (116) and the second metal layer (117).
  9. The display apparatus (1) of claim 8, wherein a size of a portion of the insert portion (111) formed in the resin layer (118) is the same as a size of another portion of the insert portion (111) formed in the first metal layer (116)
  10. A manufacturing method of a display apparatus (1). the method comprising: providing a frame panel (110) including a first side and a second side opposite to the first side forming an insert portion (111) to pass through the frame panel and having a first opening (111a) formed or the first side and a second opening 111b) formed on the second side, and a size of the first opening being greater than a size of the second opening; inserting a stud (120) into the insert portion through the first opening; attaching a reinforcing member (190) to the first side of the frame panel forming a module opening on the frame panel and the reinforcing member; detachably coupling a bracket to the stud (120) through the second opening formed on the second side of the frame panel; and attaching a plurality of display modules (30) to the reinforcing member at the first side of the frame panel.
  11. The manufacturing method of claim 10, wherein the bracket includes at least one of a mounting bracket, a chassis bracket, a reinforcing bracket, and a board bracket.
  12. The manufacturing method of claim 11, wherein the forming of the insert portion comprises forming the insert portion from the first side by using at least one of a shape processing apparatus, a water jet, and a laser.

Description

Technical Field The disclosure relates to a display apparatus capable of displaying an image by combining modules in which a light emitting device is mounted on a substrate, and a manufacturing method thereof. Background Art A display apparatus is a type of an output device that visually displays data information such as characters and figures, and images. In general, a display apparatus has mainly used a liquid crystal panel that requires a backlight or an organic light-emitting diode (OLED) panel provided with a film of an organic compound that emits light by itself in response to an electric current. However, the liquid crystal panel has difficulties such as a slow-response time, and high-power consumption, and further it is difficult to make the liquid crystal panel compact because the liquid crystal panel does not emit light by itself, and requires a backlight. In addition, because the OLED panel emits light by itself, the OLED panel does not require a backlight, and thus it is possible to make the OLED panel thin. However, the OLED panel is susceptible to screen burn-in. The screen burn-in is a phenomenon in which, if the same screen is displayed for a long time, the lifetime of the sub-pixels expires and the previous screen remains the same even when the screen is changed. Accordingly, a micro light emitting diode (micro-LED or µLED) panel in which an inorganic light emitting device is mounted on a substrate and the inorganic light emitting device itself is used as a pixel has been studied as a new panel to replace the OLED panel. A micro-light emitting diode display panel (hereinafter, micro-LED panel) is one of the flat display panels and is composed of a plurality of inorganic light emitting diodes (inorganic LEDs) that is 100 micrometers or less. The micro-LED panel is also a self-light emitting device, but the micro-LED does not suffer from the screen burn-in and has excellent luminance, resolution, power consumption, and durability because of its inorganic nature. KR20200023188A relates to a display device comprising a frame; a display module displaying a screen; and a magnetic fastening device; KR20200011087A relates to a LED display apparatus and a support frame assembly; KR20140141400A relates to display device including a display unit and a support frame. Disclosure Technical Problem In comparison with the LCD panel requiring a backlight, a micro-LED panel may offer better contrast, response times, and energy efficiency. Both organic light emitting diodes (OLEDs) and micro-LEDs corresponding to inorganic light emitting devices have good energy efficiency. However, the micro-LED has higher brightness and emission efficiency, and longer lifetime than the OLED. In addition, by arraying the LEDs on a circuit board in pixel units, it is possible to manufacture a display module in a substrate unit, and it is easy to manufacture a display apparatus in various resolutions and screen sizes according to the customer's order. Technical Solution In accordance with an aspect of the disclosure, a display apparatus includes a plurality of display modules, a frame provided to support the plurality of display modules, and a bracket detachably coupled to the frame, the plurality of display modules being arranged in an M*N matrix on the frame, and the frame includes a frame panel including a first side and a second side opposite to the first side, the frame panel includes an insert portion passing through the frame panel, a first opening being formed on the first side and a second opening being formed on the second side, and a size of the first opening being greater than a size of the second opening, and a stud provided in the insert portion, wherein the plurality of display modules are attached to the first side of the frame panel and the bracket is coupled to the stud through the second opening formed on the second side of the frame panel. The insert portion may be provided such that the first opening and the second opening form a step difference. The insert portion may be formed in a shape that tapers from the first side toward the second side. The stud may include a coupling portion having an opening toward the second opening, and the coupling portion may include a screw thread formed on an inner circumferential surface of the coupling portion. The bracket may include at least one of a mounting bracket, a chassis bracket, a reinforcing bracket, and a board bracket. The frame may further include a reinforcing member attached to the first side of the frame panel and provided to cover the first opening. The plurality of display modules may be attached to the reinforcing member. The frame panel may further include a first metal layer forming the first side of the frame panel, a second metal layer forming the second side of the frame panel, and a resin layer arranged between the first metal layer and the second metal layer. A size of a portion of the insert portion formed in the resin layer may be a same as a